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net: lan966x: refactor buffer reload function

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Now that we store everything in the fdma structs, refactor
lan966x_fdma_reload() to store and restore the entire struct.

Signed-off-by: Daniel Machon <daniel.machon@microchip.com>
Reviewed-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Daniel Machon
2024-09-05 10:06:40 +02:00
committed by Paolo Abeni
parent 9fbc5719f6
commit 89ba464fcf
1 changed files with 4 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/net/ethernet/microchip/lan966x/lan966x_fdma.c
+4 -10
View File
@@ -810,14 +810,11 @@ static int lan966x_qsys_sw_status(struct lan966x *lan966x)
static int lan966x_fdma_reload(struct lan966x *lan966x, int new_mtu)
{
struct page_pool *page_pool;
dma_addr_t rx_dma;
void *rx_dcbs;
u32 size;
struct fdma fdma_rx_old;
int err;
/* Store these for later to free them */
rx_dma = lan966x->rx.fdma.dma;
rx_dcbs = lan966x->rx.fdma.dcbs;
memcpy(&fdma_rx_old, &lan966x->rx.fdma, sizeof(struct fdma));
page_pool = lan966x->rx.page_pool;
napi_synchronize(&lan966x->napi);
@@ -833,9 +830,7 @@ static int lan966x_fdma_reload(struct lan966x *lan966x, int new_mtu)
goto restore;
lan966x_fdma_rx_start(&lan966x->rx);
size = sizeof(struct fdma_dcb) * lan966x->rx.fdma.n_dcbs;
size = ALIGN(size, PAGE_SIZE);
dma_free_coherent(lan966x->dev, size, rx_dcbs, rx_dma);
fdma_free_coherent(lan966x->dev, &fdma_rx_old);
page_pool_destroy(page_pool);
@@ -845,8 +840,7 @@ static int lan966x_fdma_reload(struct lan966x *lan966x, int new_mtu)
return err;
restore:
lan966x->rx.page_pool = page_pool;
lan966x->rx.fdma.dma = rx_dma;
lan966x->rx.fdma.dcbs = rx_dcbs;
memcpy(&lan966x->rx.fdma, &fdma_rx_old, sizeof(struct fdma));
lan966x_fdma_rx_start(&lan966x->rx);
return err;